The Biggest Chemical Poisoning Crisis in US History

April 20, 2011 marks the one-year anniversary of BP’s catastrophic oil disaster in the Gulf of Mexico. On this day in 2010 the Deepwater Horizon oil rig exploded, causing oil to gush from 5,000 feet below the surface into the ninth largest body of water on the planet.

At least 4.9 million barrels of BP’s oil would eventually be released into the Gulf of Mexico before the well was capped 87 days later.

It is, to date, the largest accidental marine oil spill in the history of the petroleum industry. BP has used at least 1.9 million gallons of toxic dispersants to sink the oil, in an effort the oil giant claimed was aimed at keeping the oil from reaching shore.

Critics believe the chemical dispersants were used simply to hide the oil and minimise BP’s responsibility for environmental fines.

Earlier this month Transocean Ltd, the owner of the Deepwater Horizon, gave its top executives bonuses for achieving what it described as the “best year in safety performance in our company’s history”. Transocean CEO Steve Newman’s bonus was $374,062.